<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>员工列表练习</title>
</head>
<body>
<input type="text" placeholder="员工姓名" id="i1">
<input type="text" placeholder="员工工资" id="i2">
<input type="text" placeholder="员工工作" id="i3">
<input type="button" value="添加" onclick="f()">

<table border="">
    <caption>员工列表</caption>
    <tr>
        <th>姓名</th>
        <th>工资</th>
        <th>工作</th>
    </tr>
</table>

<script>
    let i1 = document.querySelector("#i1");
    let i2 = document.querySelector("#i2");
    let i3 = document.querySelector("#i3");
    let t = document.querySelector("table")

    function f() {
        //创建1个tr标签对象3个td标签对象
        let tr = document.createElement("tr");
        let nameTd = document.createElement("td");
        let salaryTd = document.createElement("td");
        let jobTd = document.createElement("td");

        //把文本框中的内容取出赋值给td
        nameTd.innerText = i1.value;
        salaryTd.innerText = i2.value;
        jobTd.innerText = i3.value;

        tr.append(nameTd, salaryTd, jobTd); //把3个td装进tr
        t.append(tr); //把tr装进table
    }
</script>

</body>
</html>